jQuery.holdReady Test

This is a test page for jQuery.readyWait and jQuery.holdReady,
see
#6781
and
#8803.

Test for jQuery.holdReady, which can be used
by plugins and other scripts to indicate something
important to the page is still loading and needs
to block the DOM ready callbacks that are registered
with jQuery.

Script loaders are the most likely kind of script
to use jQuery.holdReady, but it could be used by
other things like a script that loads a CSS file
and wants to pause the DOM ready callbacks.

Expected Result: The text
It Worked!
appears below after about 2 seconds.

If there is an error in the console,
or the text does not show up, then the test failed.